Thomas ueie



(No Model.)

j T. URIE.

PITMAN COUPLING FOR HARVESTBRS.

Patented Dec. 12, 1882.

' WITNESSES N. FE'IEBS- ma-LW Wm lI-C.

' UNIT D STATES PATENT OFFICE,

THOMAS URIE, OF BOULDER, COLORADO, ASSIGNOB OFiONE-THIIRD TO FREDERICKS. HALL, OF SAME PLACE.

PlTMAN-COUPLING FOR HARVESTERS.

SPECIFICATION forming part of Letters Patent No. 269,140, dated December12, 1882.

Application filed October 9,1882. (No model.)

skilled in the art to which it appertains to make and use the same,reference being bad to the accompanying drawings, which form a part ofthis specification, and in which- Figure 1; is a perspective view of myiinroved cou lin and'FimZis a sectional view of the same through theregulating or adjusting be] t.

Similar letteis of reference indicate corresponding parts in both thefigures.

My invention has relation to devices for coupling the pitinan ofharvesting-machines to the sickle-bar and it consists in the detailedconstruction of a coupling adapted to take up wear at its bearing-point,so as to avoid rattling and loss of motion, substantiallyas-rhereinal'ter more fully described, and particularly pointed out inthe claim.

My improved coupling is made by bending a piece of iron or steel so as.to form two arms, A and A, having elbows B and B at their divergingouter ends, one of which elbows, B, is bent right angles to form a plateor projection, I

Through arms B and B is inserted a threaded bolt, D, havinga nut, E, andat the lower corners or bends of arms B and B are conical projections Fand F, which tit into conical recesses in the head G of the sickle-bar.As the head wears, arms A and A may be brought closer together, so as totake up the wear by tightening the nut E, the plate (J being made shortenough to permit of the adjustment of arms A A. The spring of the arms Aand A, which,as above stated, are formed by bending or doubling a singlepiece of metal, operates to keep the conical projections F and F aproper distance apart within the limit or play allowed between the headof the bolt Dand nut E.

Having thus described myinvention, Iclaim and desire to secure byLetters Patent of the United States The pitman coupling forharvestingmachines consisting of the arms A A, having elbows B and B,top plate,O,and cone-shaped projections F and F, in combination with theadjusting-bolt D, havinga nut, E, substantially as and for the purposeherein shown and speci- THOMAS URIE.

Witnesses:

- CHAS. M. CAMPBELL,

H. P. WALKER.

